Please use this identifier to cite or link to this item: https://doi.org/10.1049/ip-map:19952197
Title: Complete scattering parameter characterisation by FDTD method of Y-junction power dividers with small output angles
Authors: Hum, P.J. 
Leong, M.S. 
Kooi, P.S. 
Yeo, T.S. 
Issue Date: Oct-1995
Source: Hum, P.J., Leong, M.S., Kooi, P.S., Yeo, T.S. (1995-10). Complete scattering parameter characterisation by FDTD method of Y-junction power dividers with small output angles. IEE Proceedings: Microwaves, Antennas and Propagation 142 (5) : 379-383. ScholarBank@NUS Repository. https://doi.org/10.1049/ip-map:19952197
Abstract: The finite difference time-domain method is applied to calculate the complete frequency dependent scattering matrix of microstrip Y-junctions with increasingly narrow angles between their output ports. The results of the junctions' port isolations are presented. Numerical results obtained compare favourably with experiment and published results over a wide frequency range. These results show that the angle between the output ports significantly influences the matching, transmission and isolation characteristics of the junctions. It is shown how the stability criterion can be used to calculate a suitable size of the computational domain for accurate results. Transient spatial distribution of the electric fields of the Y-junction vividly reveals the complex mechanism of substrate surface-wave generation.
Source Title: IEE Proceedings: Microwaves, Antennas and Propagation
URI: http://scholarbank.nus.edu.sg/handle/10635/61954
ISSN: 13502417
DOI: 10.1049/ip-map:19952197
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